import * as mongoose from 'mongoose';

/**
 * 连接
 */
mongoose.connect('mongodb://127.0.0.1:27017' + '/learning', {
  useNewUrlParser: true,
  useUnifiedTopology: true,
  useCreateIndex: true
});

/**
 * 连接成功
 */
mongoose.connection.on('connected', function() {
  console.log('Mongoose connection succuss');
});

/**
 * 连接异常
 */
mongoose.connection.on('error', function(err) {
  console.log('Mongoose connection error: ' + err);
});

/**
 * 连接断开
 */
mongoose.connection.on('disconnected', function() {
  console.log('Mongoose connection disconnected');
});

export default mongoose;
